Extech Clamp Meter, 600A True RMS AC DC, NCV - MA640

In stock

The 600A AC Clamp Meter not only features 60A and 600A current ranges but also has True RMS measurements and multimeter capabilities. On top of this it features a non-contact voltage detector with an LED alert.

Extech Clamp Meter, 600A True RMS AC DC, NCV - MA640

60A and 600A Current ranges with True RMS accuracy and a DC current function, plus built-in non-contact voltage detector with LED alert for clear voltage detection


  • DC Current Function with 60A and 600A ranges
  • 1.5” (40mm) jaw size for conductors up to 500MCM
  • True RMS for accurate readings of non-sinusoidal waveforms
  • Measures temperature with a Type K bead wire probe
  • Relative Mode for capacitance zero, and offset adjustment
  • Data Hold and MIN/MAX
  • Auto power off
  • Comes complete with test leads, a general purpose Type K bead wire probe, a 9V battery and a handy carrying case

A clamp meter quickly and easily measures current flowing through a conductor without any invasive or dangerous procedures. The 600A AC and DC Clamp meter features the ability to choose between 60A and 600A ranges for more accurate current measurements. With the trusted accuracy of True RMS measurements for non-sinusoidal waveforms.

Also features many of the advantages of a Multimeter such as the ability to measure AC and DC voltage, resistance, capacitance, duty cycle, diode, continuity, frequency and temperature. Compact and easy to use with many features makes this instrument great for a multitude of jobs.


  • Display counts: 6000
  • AC Current: 60.00A, 600.0A
  • DC Current: 60A, 600A
  • AC Voltage: 6.000V, 60.00V, 600.0V
  • DC Voltage: 600.0mV, 6.000V, 60.00V, 600.0V
  • Resistance: 600.0Ω, 6.000kΩ, 60.00kΩ, 600.0kΩ, 6.000MΩ, 60.00MΩ
  • Frequency: 10Hz to 10kHz
  • Capacitance: 40.00nF, 400.0nF, 4.000μF, 40.00μF, 400.0μF, 4000μF
  • Temperature: -4 to 1400°F (-20 to 760°C)
  • Duty Cycle: 0.5 to 99.0%
  • Diode: Yes
  • Continuity: Yes
  • Warranty: 1 year
  • Dimensions: 9.1x3x1.5" (232x77x39mm)
  • Weight: 9.6oz (271g)

Unit Ship Weight: 1.5 lbs

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